Need help eliminating emissions equipment on speed density 5.0

32DeuceCoupe

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Jul 17, 2005
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A friend of mine and I are installing an '89 speed density 5.0 from an LTD into a '49 Ford. But we need help with eliminating the smog/emissions equipment. What all is involved in eliminating the air pump(for smog) and all emissions equipment. We have already welded up the rear exhaust recirculator pipe and are ready to remove the pump itself, and all things involved with it. Do we just buy the smog eliminator pulley and not hook up the wiring or what? We would like to eliminate all un-needed solenoids and other wiring involved with emissions. We should be getting a new harness(speed density) so when we do, we need to know how to wire it all properly, but not wire in the un-needed. What all sensors can be eliminated? I know there is a lot of hoses, sensors, and wiring associated with the emissions, but I don't know where it all is, or how to properly remove it and keep the computer working normally. Hopefully you can give me some insight.
 
32DeuceCoupe said:
A friend of mine and I are installing an '89 speed density 5.0 from an LTD into a '49 Ford. But we need help with eliminating the smog/emissions equipment. What all is involved in eliminating the air pump(for smog) and all emissions equipment. We have already welded up the rear exhaust recirculator pipe and are ready to remove the pump itself, and all things involved with it. Do we just buy the smog eliminator pulley and not hook up the wiring or what? We would like to eliminate all un-needed solenoids and other wiring involved with emissions. We should be getting a new harness(speed density) so when we do, we need to know how to wire it all properly, but not wire in the un-needed. What all sensors can be eliminated? I know there is a lot of hoses, sensors, and wiring associated with the emissions, but I don't know where it all is, or how to properly remove it and keep the computer working normally. Hopefully you can give me some insight.


Why not a 5.0 HO? I know on the HO's you don't need a smog eliminator pulley when removing the smog pump. If you lose the EGR then you'll need a block off plate and something to keep the EGR sensor happy but I would suggest keeping that. You'll need to block off the holes in the heads from the lines that run to them. I know where there is a chart or 2 that has the routing.....I'll post the link.

http://www.veryuseful.com/mustang/t...ng5.0Vacuum.gif
http://www.veryuseful.com/mustang/t...cuumDiagram.jpg
 
Why not a 5.0 HO?
This motor only had 60k original miles, and the whole car was just $200. If we wouldn't have gotten this efi motor, it would have been carburated, and efi is much cooler in a custom. Yesterday I removed the fitting that goes to the heads, cut the pipe off, and welded in a fairly thick sheet steel plate. Both are all cleaned up now(looks original!) and bolted back in place. The diagrams would be very helpful, but I can't get the links to work. Our main concern is with the solenoids for emissions, and other wiring. So, are you saying that we just leave the egr sensor in there, but disconnect everything else? Thanks

EDIT: Just went to the site(skipped link and wrote in site) and it really is "very useful". It should definitely come in handy during the wiring.
 
32DeuceCoupe said:
This motor only had 60k original miles, and the whole car was just $200. If we wouldn't have gotten this efi motor, it would have been carburated, and efi is much cooler in a custom. Yesterday I removed the fitting that goes to the heads, cut the pipe off, and welded in a fairly thick sheet steel plate. Both are all cleaned up now(looks original!) and bolted back in place. The diagrams would be very helpful, but I can't get the links to work. Our main concern is with the solenoids for emissions, and other wiring. So, are you saying that we just leave the egr sensor in there, but disconnect everything else? Thanks

EDIT: Just went to the site(skipped link and wrote in site) and it really is "very useful". It should definitely come in handy during the wiring.

No doubt...a great site. I'm going to try and attach a pic that is close to what I have left.
 

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